What are the built-in or predefined styles used for formatting text called?

The built-in or predefined styles used for formatting text are commonly referred to as "style sheets" or "text styles." In applications like Word processors or web design, these may include headings, paragraphs, quotes, and lists, which help maintain consistency and improve readability. In HTML and CSS, for example, predefined styles can be applied through class or ID selectors. These styles streamline the formatting process and enhance the overall visual presentation of the text.